<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <button>点击按钮跳转百度</button>
    <script>
        var btn = document.querySelector('button');
        btn.addEventListener('click', function() {
            //跳转页面 (设置当前页面的url地址)
            window.location.href = 'https://www.baidu.com';
        })

    </script>
</body>
</html>